Learn with DEX
Make a better buying decision, one check at a time.
A large discount does not tell you whether an offer suits your needs. These short exercises help you compare the exact item, understand the evidence and work out the amount you would actually pay.
Use a product or service you already intend to buy. You do not need to place an order to practise. Keep your notes beside the listing, and stop if the retailer’s terms leave an important question unanswered.
1. Write a useful buying brief
Start with the job the purchase must do, your maximum total budget and when you need it. Write down the features you must have separately from the extras you would enjoy. For a laptop, that might mean the applications it needs to run, portability and connections; for furniture, the measurements and delivery access matter more than a promotional headline.
Before browsing, check whether something you already own can meet the need. A repair, a borrowed item or a simpler version can sometimes avoid the purchase altogether. Your brief gives you a consistent way to reject attractive offers that solve the wrong problem.
2. Match the exact offer
Compare the model, size, colour, pack quantity and condition on both the listing and retailer page. Similar names can describe different versions. Look for a matching manufacturer model number or product identifier where supplied, and check what accessories are included. A bundle is only better value if you would use its extra items.
Confirm the seller, shopping country and currency before comparing amounts. A source market label is useful context, but it does not guarantee delivery to your address. Do not treat an unfamiliar currency as pounds or assume a retailer’s overseas price includes the same charges and protections.
3. Read the evidence separately from the headline
Open the DEX evidence panel and identify what was actually checked. Listing information, a retailer-page check and a checkout code test answer different questions. A recent feed update does not prove a promotion remains active, and a supplied comparison price is not proof of the lowest historical price.
Compare the source date with the offer’s start and end dates. If the end date has passed, the original page can still help you understand the old offer, but it does not renew the promotion. If an unusually distant date is supplied, confirm the real deadline directly with the retailer instead of relying on it.
4. Check eligibility before trying a code
Read the full supplied terms, then the retailer’s current terms. Look for new-customer restrictions, minimum spend, excluded brands, sale-item exclusions, membership requirements and rules about combining offers. A short eligibility excerpt is a starting point; any qualification in the full terms still matters.
If you decide to use a code, check the discount appears against the intended items before payment. A code being accepted is not enough if it removes a better existing promotion or raises the delivery charge. Do not complete a purchase simply to discover whether the final price is correct.
5. Compare the full cost
Write down the item price after any confirmed discount, delivery and any mandatory charges. Include quantities so a larger pack is compared on the same basis. For a subscription or contract, record the introductory period, normal ongoing charge, minimum term and any equipment or setup cost rather than comparing the first payment alone.
The delivered-cost calculator can help organise your figures. Enter amounts from the retailer and label anything still unknown. Compare returns charges, cancellation terms and expected delivery separately: the lowest headline price may be less suitable if it cannot meet your deadline.
6. Keep a shortlist and revisit the facts
Use Saved to keep the offers you want to reconsider. Limit your active shortlist to a few realistic options and note the reason each qualifies. Recheck price, stock and terms when you return, because saving a listing does not reserve the item or fix its price.
Before choosing, explain your decision in one sentence: this option meets the requirements, costs this much in total, and has these remaining uncertainties. If you cannot finish that sentence, identify the missing fact rather than letting an expiry countdown make the decision for you.
Choose your next lesson
Explore shopping guides for more detailed comparisons, education and learning resources for course options, or Tech Fixx videos for practical technology help. When comparing a paid course, check its syllabus, assumed starting level, access period, support and any renewal charges.
The frequently asked questions explain how Tailored Deals works. If a listing appears incorrect, use contact and corrections with the page address and supporting retailer information. Never include passwords, payment-card details or other sensitive account information.
Tailored Deals may earn commission from qualifying retailer purchases. Learning content and saved offers do not guarantee an item’s availability or a promotion’s success.